./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_0920b.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_0920b.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash df7585bdb7f55dd146660d2fca5142563fdf3df8 ...................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_0920b.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash df7585bdb7f55dd146660d2fca5142563fdf3df8 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-28 17:51:26,550 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 17:51:26,554 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 17:51:26,571 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 17:51:26,572 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 17:51:26,574 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 17:51:26,577 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 17:51:26,587 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 17:51:26,592 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 17:51:26,596 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 17:51:26,598 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 17:51:26,600 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 17:51:26,600 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 17:51:26,603 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 17:51:26,604 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 17:51:26,605 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 17:51:26,606 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 17:51:26,607 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 17:51:26,610 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 17:51:26,615 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 17:51:26,621 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 17:51:26,626 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 17:51:26,628 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 17:51:26,629 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 17:51:26,632 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 17:51:26,632 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 17:51:26,633 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 17:51:26,635 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 17:51:26,635 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 17:51:26,637 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 17:51:26,637 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 17:51:26,638 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 17:51:26,639 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 17:51:26,640 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 17:51:26,642 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 17:51:26,642 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 17:51:26,643 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 17:51:26,643 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 17:51:26,644 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 17:51:26,645 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 17:51:26,646 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 17:51:26,647 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 17:51:26,677 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 17:51:26,677 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 17:51:26,679 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 17:51:26,679 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 17:51:26,680 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 17:51:26,680 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 17:51:26,680 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 17:51:26,681 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 17:51:26,681 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 17:51:26,681 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 17:51:26,682 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 17:51:26,682 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 17:51:26,682 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 17:51:26,682 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 17:51:26,683 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 17:51:26,683 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 17:51:26,683 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 17:51:26,684 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 17:51:26,684 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 17:51:26,684 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 17:51:26,685 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 17:51:26,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:51:26,685 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 17:51:26,686 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 17:51:26,686 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 17:51:26,686 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 17:51:26,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 17:51:26,687 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 17:51:26,687 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 17:51:26,688 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df7585bdb7f55dd146660d2fca5142563fdf3df8 [2020-07-28 17:51:26,996 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 17:51:27,011 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 17:51:27,014 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 17:51:27,016 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 17:51:27,017 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 17:51:27,018 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0920b.c [2020-07-28 17:51:27,083 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c47463d4f/85da76b58b11457688d2a6b9da207fab/FLAG4f39fef18 [2020-07-28 17:51:27,571 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 17:51:27,572 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0920b.c [2020-07-28 17:51:27,584 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c47463d4f/85da76b58b11457688d2a6b9da207fab/FLAG4f39fef18 [2020-07-28 17:51:27,955 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c47463d4f/85da76b58b11457688d2a6b9da207fab [2020-07-28 17:51:27,958 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 17:51:27,962 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 17:51:27,964 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 17:51:27,964 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 17:51:27,968 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 17:51:27,969 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:51:27" (1/1) ... [2020-07-28 17:51:27,973 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d671db0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:51:27, skipping insertion in model container [2020-07-28 17:51:27,973 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:51:27" (1/1) ... [2020-07-28 17:51:27,982 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 17:51:28,024 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 17:51:28,287 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:51:28,292 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 17:51:28,402 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:51:28,427 INFO L208 MainTranslator]: Completed translation [2020-07-28 17:51:28,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:51:28 WrapperNode [2020-07-28 17:51:28,428 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 17:51:28,429 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 17:51:28,429 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 17:51:28,430 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 17:51:28,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:51:28" (1/1) ... [2020-07-28 17:51:28,450 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:51:28" (1/1) ... [2020-07-28 17:51:28,492 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 17:51:28,493 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 17:51:28,493 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 17:51:28,494 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 17:51:28,502 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:51:28" (1/1) ... [2020-07-28 17:51:28,502 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:51:28" (1/1) ... [2020-07-28 17:51:28,506 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:51:28" (1/1) ... [2020-07-28 17:51:28,506 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:51:28" (1/1) ... [2020-07-28 17:51:28,518 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:51:28" (1/1) ... [2020-07-28 17:51:28,525 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:51:28" (1/1) ... [2020-07-28 17:51:28,528 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:51:28" (1/1) ... [2020-07-28 17:51:28,532 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 17:51:28,532 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 17:51:28,532 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 17:51:28,533 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 17:51:28,534 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:51:28" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:51:28,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 17:51:28,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-28 17:51:28,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-28 17:51:28,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-28 17:51:28,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 17:51:28,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 17:51:28,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-28 17:51:28,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 17:51:29,104 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 17:51:29,104 INFO L295 CfgBuilder]: Removed 14 assume(true) statements. [2020-07-28 17:51:29,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:51:29 BoogieIcfgContainer [2020-07-28 17:51:29,111 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 17:51:29,112 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 17:51:29,113 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 17:51:29,116 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 17:51:29,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 05:51:27" (1/3) ... [2020-07-28 17:51:29,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e0fbff5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:51:29, skipping insertion in model container [2020-07-28 17:51:29,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:51:28" (2/3) ... [2020-07-28 17:51:29,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e0fbff5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:51:29, skipping insertion in model container [2020-07-28 17:51:29,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:51:29" (3/3) ... [2020-07-28 17:51:29,120 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0920b.c [2020-07-28 17:51:29,128 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 17:51:29,135 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 17:51:29,145 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 17:51:29,168 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 17:51:29,169 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 17:51:29,169 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 17:51:29,169 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 17:51:29,171 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 17:51:29,172 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 17:51:29,172 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 17:51:29,172 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 17:51:29,189 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-07-28 17:51:29,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-07-28 17:51:29,196 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:51:29,197 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:51:29,198 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:51:29,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:51:29,205 INFO L82 PathProgramCache]: Analyzing trace with hash -1904103824, now seen corresponding path program 1 times [2020-07-28 17:51:29,215 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 17:51:29,216 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943574267] [2020-07-28 17:51:29,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 17:51:29,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:51:29,358 INFO L280 TraceCheckUtils]: 0: Hoare triple {33#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~ln2_hi_log~0 := 0.69313812256;~ln2_lo_log~0 := 9.0580006145E-6;~two25_log~0 := 3.3554432E7;~Lg1_log~0 := 0.66666668653;~Lg2_log~0 := 0.40000000596;~Lg3_log~0 := 0.28571429849;~Lg4_log~0 := 0.22222198546;~Lg5_log~0 := 0.1818357259;~Lg6_log~0 := 0.15313838422;~Lg7_log~0 := 0.1479819864;~zero_log~0 := 0.0; {33#true} is VALID [2020-07-28 17:51:29,359 INFO L280 TraceCheckUtils]: 1: Hoare triple {33#true} havoc main_#res;havoc main_#t~ret8, main_#t~ret9, main_~x~0, main_~res~0;main_~x~0 := ~someBinaryArithmeticFLOAToperation(~someUnaryFLOAToperation(1.0), 0.0);__ieee754_logf_#in~x := main_~x~0;havoc __ieee754_logf_#res;havoc __ieee754_logf_#t~mem2, __ieee754_logf_#t~union3, __ieee754_logf_~#gf_u~1.base, __ieee754_logf_~#gf_u~1.offset, __ieee754_logf_#t~mem4, __ieee754_logf_#t~union5, __ieee754_logf_~#gf_u~2.base, __ieee754_logf_~#gf_u~2.offset, __ieee754_logf_#t~mem6, __ieee754_logf_#t~union7, __ieee754_logf_~#sf_u~0.base, __ieee754_logf_~#sf_u~0.offset, __ieee754_logf_~x, __ieee754_logf_~hfsq~0, __ieee754_logf_~f~0, __ieee754_logf_~s~0, __ieee754_logf_~z~0, __ieee754_logf_~R~0, __ieee754_logf_~w~0, __ieee754_logf_~t1~0, __ieee754_logf_~t2~0, __ieee754_logf_~dk~0, __ieee754_logf_~k~0, __ieee754_logf_~ix~1, __ieee754_logf_~i~0, __ieee754_logf_~j~0;__ieee754_logf_~x := __ieee754_logf_#in~x;havoc __ieee754_logf_~hfsq~0;havoc __ieee754_logf_~f~0;havoc __ieee754_logf_~s~0;havoc __ieee754_logf_~z~0;havoc __ieee754_logf_~R~0;havoc __ieee754_logf_~w~0;havoc __ieee754_logf_~t1~0;havoc __ieee754_logf_~t2~0;havoc __ieee754_logf_~dk~0;havoc __ieee754_logf_~k~0;havoc __ieee754_logf_~ix~1;havoc __ieee754_logf_~i~0;havoc __ieee754_logf_~j~0; {33#true} is VALID [2020-07-28 17:51:29,362 INFO L280 TraceCheckUtils]: 2: Hoare triple {33#true} assume !true; {34#false} is VALID [2020-07-28 17:51:29,362 INFO L280 TraceCheckUtils]: 3: Hoare triple {34#false} __ieee754_logf_~k~0 := 0; {34#false} is VALID [2020-07-28 17:51:29,362 INFO L280 TraceCheckUtils]: 4: Hoare triple {34#false} assume 0 == ~bitwiseAnd(__ieee754_logf_~ix~1, 2147483647);__ieee754_logf_#res := ~someBinaryArithmeticFLOAToperation(~someUnaryFLOAToperation(~two25_log~0), ~zero_log~0); {34#false} is VALID [2020-07-28 17:51:29,363 INFO L280 TraceCheckUtils]: 5: Hoare triple {34#false} main_#t~ret8 := __ieee754_logf_#res;main_~res~0 := main_#t~ret8;havoc main_#t~ret8;isnan_float_#in~x := main_~res~0;havoc isnan_float_#res;havoc isnan_float_~x;isnan_float_~x := isnan_float_#in~x;isnan_float_#res := (if ~someBinaryFLOATComparisonOperation(isnan_float_~x, isnan_float_~x) then 1 else 0); {34#false} is VALID [2020-07-28 17:51:29,363 INFO L280 TraceCheckUtils]: 6: Hoare triple {34#false} main_#t~ret9 := isnan_float_#res;assume -2147483648 <= main_#t~ret9 && main_#t~ret9 <= 2147483647; {34#false} is VALID [2020-07-28 17:51:29,364 INFO L280 TraceCheckUtils]: 7: Hoare triple {34#false} assume 0 == main_#t~ret9;havoc main_#t~ret9; {34#false} is VALID [2020-07-28 17:51:29,364 INFO L280 TraceCheckUtils]: 8: Hoare triple {34#false} assume !false; {34#false} is VALID [2020-07-28 17:51:29,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:51:29,368 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943574267] [2020-07-28 17:51:29,369 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:51:29,369 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 17:51:29,370 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805728598] [2020-07-28 17:51:29,376 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-07-28 17:51:29,378 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:51:29,382 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 17:51:29,404 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 9 edges. 9 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:51:29,404 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 17:51:29,404 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 17:51:29,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 17:51:29,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 17:51:29,417 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2020-07-28 17:51:29,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:51:29,533 INFO L93 Difference]: Finished difference Result 58 states and 92 transitions. [2020-07-28 17:51:29,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 17:51:29,534 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-07-28 17:51:29,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:51:29,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:51:29,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 92 transitions. [2020-07-28 17:51:29,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:51:29,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 92 transitions. [2020-07-28 17:51:29,565 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 92 transitions. [2020-07-28 17:51:29,746 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 92 edges. 92 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:51:29,757 INFO L225 Difference]: With dead ends: 58 [2020-07-28 17:51:29,757 INFO L226 Difference]: Without dead ends: 27 [2020-07-28 17:51:29,761 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 17:51:29,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-07-28 17:51:29,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-07-28 17:51:29,793 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:51:29,793 INFO L82 GeneralOperation]: Start isEquivalent. First operand 27 states. Second operand 27 states. [2020-07-28 17:51:29,794 INFO L74 IsIncluded]: Start isIncluded. First operand 27 states. Second operand 27 states. [2020-07-28 17:51:29,794 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 27 states. [2020-07-28 17:51:29,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:51:29,798 INFO L93 Difference]: Finished difference Result 27 states and 37 transitions. [2020-07-28 17:51:29,799 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2020-07-28 17:51:29,799 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:51:29,799 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:51:29,800 INFO L74 IsIncluded]: Start isIncluded. First operand 27 states. Second operand 27 states. [2020-07-28 17:51:29,800 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 27 states. [2020-07-28 17:51:29,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:51:29,803 INFO L93 Difference]: Finished difference Result 27 states and 37 transitions. [2020-07-28 17:51:29,803 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2020-07-28 17:51:29,804 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:51:29,804 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:51:29,804 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:51:29,805 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:51:29,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-07-28 17:51:29,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2020-07-28 17:51:29,809 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 9 [2020-07-28 17:51:29,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:51:29,809 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2020-07-28 17:51:29,810 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 17:51:29,810 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2020-07-28 17:51:29,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-28 17:51:29,811 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:51:29,811 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:51:29,811 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 17:51:29,811 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:51:29,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:51:29,812 INFO L82 PathProgramCache]: Analyzing trace with hash 1484246989, now seen corresponding path program 1 times [2020-07-28 17:51:29,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 17:51:29,813 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955571860] [2020-07-28 17:51:29,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 17:51:29,872 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 17:51:29,872 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.TableauxRow.(TableauxRow.java:45) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.generateLinVar(LinArSolve.java:275) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.createEquality(LinArSolve.java:1974) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.createLAEquality(EqualityProxy.java:83) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.createAtom(EqualityProxy.java:165) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.getLiteral(EqualityProxy.java:186) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.createCCEquality(EqualityProxy.java:109) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.mbtc(LinArSolve.java:1891) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.computeConflictClause(LinArSolve.java:664) at de.uni_freiburg.informatik.ultimate.smtinterpol.dpll.DPLLEngine.checkConsistency(DPLLEngine.java:1010) at de.uni_freiburg.informatik.ultimate.smtinterpol.dpll.DPLLEngine.solve(DPLLEngine.java:1157) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol$CheckType$1.check(SMTInterpol.java:117) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.checkSatAssuming(SMTInterpol.java:494) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.checkSat(SMTInterpol.java:446) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:130) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:295) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:206) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:89) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-28 17:51:29,879 INFO L168 Benchmark]: Toolchain (without parser) took 1918.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 960.2 MB in the beginning and 1.0 GB in the end (delta: -71.5 MB). Peak memory consumption was 64.3 MB. Max. memory is 11.5 GB. [2020-07-28 17:51:29,880 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:51:29,881 INFO L168 Benchmark]: CACSL2BoogieTranslator took 465.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 960.2 MB in the beginning and 1.1 GB in the end (delta: -165.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2020-07-28 17:51:29,881 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.58 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:51:29,882 INFO L168 Benchmark]: Boogie Preprocessor took 38.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 11.5 GB. [2020-07-28 17:51:29,883 INFO L168 Benchmark]: RCFGBuilder took 578.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.1 MB). Peak memory consumption was 32.1 MB. Max. memory is 11.5 GB. [2020-07-28 17:51:29,884 INFO L168 Benchmark]: TraceAbstraction took 763.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 53.4 MB). Peak memory consumption was 53.4 MB. Max. memory is 11.5 GB. [2020-07-28 17:51:29,891 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 465.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 960.2 MB in the beginning and 1.1 GB in the end (delta: -165.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 63.58 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 38.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 578.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.1 MB). Peak memory consumption was 32.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 763.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 53.4 MB). Peak memory consumption was 53.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: null: de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.TableauxRow.(TableauxRow.java:45) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-8bd4bc6 [2020-07-28 17:51:31,836 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 17:51:31,838 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 17:51:31,851 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 17:51:31,852 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 17:51:31,853 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 17:51:31,855 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 17:51:31,857 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 17:51:31,859 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 17:51:31,860 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 17:51:31,861 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 17:51:31,863 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 17:51:31,863 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 17:51:31,864 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 17:51:31,869 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 17:51:31,870 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 17:51:31,872 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 17:51:31,873 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 17:51:31,875 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 17:51:31,877 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 17:51:31,879 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 17:51:31,880 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 17:51:31,882 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 17:51:31,883 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 17:51:31,886 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 17:51:31,886 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 17:51:31,886 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 17:51:31,888 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 17:51:31,888 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 17:51:31,889 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 17:51:31,889 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 17:51:31,890 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 17:51:31,891 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 17:51:31,892 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 17:51:31,893 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 17:51:31,894 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 17:51:31,895 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 17:51:31,895 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 17:51:31,895 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 17:51:31,896 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 17:51:31,897 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 17:51:31,898 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-07-28 17:51:31,913 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 17:51:31,914 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 17:51:31,915 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 17:51:31,916 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 17:51:31,916 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 17:51:31,916 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 17:51:31,917 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 17:51:31,917 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 17:51:31,917 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 17:51:31,917 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 17:51:31,918 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 17:51:31,918 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 17:51:31,918 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-07-28 17:51:31,919 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-07-28 17:51:31,919 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 17:51:31,919 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 17:51:31,919 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 17:51:31,920 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 17:51:31,920 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 17:51:31,920 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 17:51:31,921 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 17:51:31,921 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 17:51:31,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:51:31,922 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 17:51:31,922 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 17:51:31,922 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 17:51:31,922 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-07-28 17:51:31,923 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-07-28 17:51:31,923 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 17:51:31,923 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 17:51:31,923 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-28 17:51:31,924 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df7585bdb7f55dd146660d2fca5142563fdf3df8 [2020-07-28 17:51:32,250 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 17:51:32,263 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 17:51:32,266 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 17:51:32,268 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 17:51:32,269 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 17:51:32,269 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0920b.c [2020-07-28 17:51:32,326 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/262761f77/1d3714b31aff401897ac2a38ed4558fd/FLAGfed72d30a [2020-07-28 17:51:32,712 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 17:51:32,713 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0920b.c [2020-07-28 17:51:32,721 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/262761f77/1d3714b31aff401897ac2a38ed4558fd/FLAGfed72d30a [2020-07-28 17:51:33,079 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/262761f77/1d3714b31aff401897ac2a38ed4558fd [2020-07-28 17:51:33,083 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 17:51:33,087 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 17:51:33,088 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 17:51:33,092 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 17:51:33,095 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 17:51:33,097 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:51:33" (1/1) ... [2020-07-28 17:51:33,099 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f8135b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:51:33, skipping insertion in model container [2020-07-28 17:51:33,100 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:51:33" (1/1) ... [2020-07-28 17:51:33,108 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 17:51:33,148 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 17:51:33,438 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:51:33,453 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 17:51:33,608 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:51:33,637 INFO L208 MainTranslator]: Completed translation [2020-07-28 17:51:33,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:51:33 WrapperNode [2020-07-28 17:51:33,638 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 17:51:33,639 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 17:51:33,639 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 17:51:33,639 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 17:51:33,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:51:33" (1/1) ... [2020-07-28 17:51:33,666 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:51:33" (1/1) ... [2020-07-28 17:51:33,711 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 17:51:33,712 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 17:51:33,712 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 17:51:33,712 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 17:51:33,723 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:51:33" (1/1) ... [2020-07-28 17:51:33,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:51:33" (1/1) ... [2020-07-28 17:51:33,729 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:51:33" (1/1) ... [2020-07-28 17:51:33,730 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:51:33" (1/1) ... [2020-07-28 17:51:33,746 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:51:33" (1/1) ... [2020-07-28 17:51:33,753 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:51:33" (1/1) ... [2020-07-28 17:51:33,756 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:51:33" (1/1) ... [2020-07-28 17:51:33,762 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 17:51:33,762 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 17:51:33,763 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 17:51:33,763 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 17:51:33,764 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:51:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:51:33,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 17:51:33,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-07-28 17:51:33,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-07-28 17:51:33,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 17:51:33,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 17:51:33,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-07-28 17:51:33,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-07-28 17:51:33,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 17:51:46,925 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 17:51:46,925 INFO L295 CfgBuilder]: Removed 14 assume(true) statements. [2020-07-28 17:51:46,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:51:46 BoogieIcfgContainer [2020-07-28 17:51:46,930 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 17:51:46,931 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 17:51:46,931 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 17:51:46,934 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 17:51:46,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 05:51:33" (1/3) ... [2020-07-28 17:51:46,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c3130ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:51:46, skipping insertion in model container [2020-07-28 17:51:46,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:51:33" (2/3) ... [2020-07-28 17:51:46,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c3130ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:51:46, skipping insertion in model container [2020-07-28 17:51:46,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:51:46" (3/3) ... [2020-07-28 17:51:46,940 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0920b.c [2020-07-28 17:51:46,950 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 17:51:46,958 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 17:51:46,970 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 17:51:46,993 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 17:51:46,993 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 17:51:46,994 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 17:51:46,994 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 17:51:46,995 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 17:51:46,995 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 17:51:46,995 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 17:51:46,995 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 17:51:47,011 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-07-28 17:51:47,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-07-28 17:51:47,018 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:51:47,019 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:51:47,020 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:51:47,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:51:47,025 INFO L82 PathProgramCache]: Analyzing trace with hash -1904103824, now seen corresponding path program 1 times [2020-07-28 17:51:47,038 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:51:47,038 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [179647580] [2020-07-28 17:51:47,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-07-28 17:51:47,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:51:47,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-28 17:51:47,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:51:47,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:51:47,674 INFO L280 TraceCheckUtils]: 0: Hoare triple {33#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;~ln2_hi_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.69313812256));~ln2_lo_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 9.0580006145E-6));~two25_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 3.3554432E7));~Lg1_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.66666668653));~Lg2_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.40000000596));~Lg3_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.28571429849));~Lg4_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.22222198546));~Lg5_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.1818357259));~Lg6_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.15313838422));~Lg7_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.1479819864));~zero_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~Pluszero~DOUBLE()); {33#true} is VALID [2020-07-28 17:51:47,674 INFO L280 TraceCheckUtils]: 1: Hoare triple {33#true} havoc main_#res;havoc main_#t~ret8, main_#t~ret9, main_~x~0, main_~res~0;main_~x~0 := ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~FLOAT(currentRoundingMode, 1.0)), ~Pluszero~FLOAT());__ieee754_logf_#in~x := main_~x~0;havoc __ieee754_logf_#res;havoc __ieee754_logf_#t~mem2, __ieee754_logf_#t~union3, __ieee754_logf_~#gf_u~1.base, __ieee754_logf_~#gf_u~1.offset, __ieee754_logf_#t~mem4, __ieee754_logf_#t~union5, __ieee754_logf_~#gf_u~2.base, __ieee754_logf_~#gf_u~2.offset, __ieee754_logf_#t~mem6, __ieee754_logf_#t~union7, __ieee754_logf_~#sf_u~0.base, __ieee754_logf_~#sf_u~0.offset, __ieee754_logf_~x, __ieee754_logf_~hfsq~0, __ieee754_logf_~f~0, __ieee754_logf_~s~0, __ieee754_logf_~z~0, __ieee754_logf_~R~0, __ieee754_logf_~w~0, __ieee754_logf_~t1~0, __ieee754_logf_~t2~0, __ieee754_logf_~dk~0, __ieee754_logf_~k~0, __ieee754_logf_~ix~1, __ieee754_logf_~i~0, __ieee754_logf_~j~0;__ieee754_logf_~x := __ieee754_logf_#in~x;havoc __ieee754_logf_~hfsq~0;havoc __ieee754_logf_~f~0;havoc __ieee754_logf_~s~0;havoc __ieee754_logf_~z~0;havoc __ieee754_logf_~R~0;havoc __ieee754_logf_~w~0;havoc __ieee754_logf_~t1~0;havoc __ieee754_logf_~t2~0;havoc __ieee754_logf_~dk~0;havoc __ieee754_logf_~k~0;havoc __ieee754_logf_~ix~1;havoc __ieee754_logf_~i~0;havoc __ieee754_logf_~j~0; {33#true} is VALID [2020-07-28 17:51:47,677 INFO L280 TraceCheckUtils]: 2: Hoare triple {33#true} assume !true; {34#false} is VALID [2020-07-28 17:51:47,677 INFO L280 TraceCheckUtils]: 3: Hoare triple {34#false} __ieee754_logf_~k~0 := 0bv32; {34#false} is VALID [2020-07-28 17:51:47,678 INFO L280 TraceCheckUtils]: 4: Hoare triple {34#false} assume 0bv32 == ~bvand32(2147483647bv32, __ieee754_logf_~ix~1);__ieee754_logf_#res := ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~two25_log~0), ~zero_log~0); {34#false} is VALID [2020-07-28 17:51:47,678 INFO L280 TraceCheckUtils]: 5: Hoare triple {34#false} main_#t~ret8 := __ieee754_logf_#res;main_~res~0 := main_#t~ret8;havoc main_#t~ret8;isnan_float_#in~x := main_~res~0;havoc isnan_float_#res;havoc isnan_float_~x;isnan_float_~x := isnan_float_#in~x;isnan_float_#res := (if !~fp.eq~FLOAT(isnan_float_~x, isnan_float_~x) then 1bv32 else 0bv32); {34#false} is VALID [2020-07-28 17:51:47,678 INFO L280 TraceCheckUtils]: 6: Hoare triple {34#false} main_#t~ret9 := isnan_float_#res; {34#false} is VALID [2020-07-28 17:51:47,679 INFO L280 TraceCheckUtils]: 7: Hoare triple {34#false} assume 0bv32 == main_#t~ret9;havoc main_#t~ret9; {34#false} is VALID [2020-07-28 17:51:47,679 INFO L280 TraceCheckUtils]: 8: Hoare triple {34#false} assume !false; {34#false} is VALID [2020-07-28 17:51:47,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:51:47,682 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:51:47,693 INFO L280 TraceCheckUtils]: 8: Hoare triple {34#false} assume !false; {34#false} is VALID [2020-07-28 17:51:47,693 INFO L280 TraceCheckUtils]: 7: Hoare triple {34#false} assume 0bv32 == main_#t~ret9;havoc main_#t~ret9; {34#false} is VALID [2020-07-28 17:51:47,694 INFO L280 TraceCheckUtils]: 6: Hoare triple {34#false} main_#t~ret9 := isnan_float_#res; {34#false} is VALID [2020-07-28 17:51:47,694 INFO L280 TraceCheckUtils]: 5: Hoare triple {34#false} main_#t~ret8 := __ieee754_logf_#res;main_~res~0 := main_#t~ret8;havoc main_#t~ret8;isnan_float_#in~x := main_~res~0;havoc isnan_float_#res;havoc isnan_float_~x;isnan_float_~x := isnan_float_#in~x;isnan_float_#res := (if !~fp.eq~FLOAT(isnan_float_~x, isnan_float_~x) then 1bv32 else 0bv32); {34#false} is VALID [2020-07-28 17:51:47,695 INFO L280 TraceCheckUtils]: 4: Hoare triple {34#false} assume 0bv32 == ~bvand32(2147483647bv32, __ieee754_logf_~ix~1);__ieee754_logf_#res := ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~two25_log~0), ~zero_log~0); {34#false} is VALID [2020-07-28 17:51:47,695 INFO L280 TraceCheckUtils]: 3: Hoare triple {34#false} __ieee754_logf_~k~0 := 0bv32; {34#false} is VALID [2020-07-28 17:51:47,697 INFO L280 TraceCheckUtils]: 2: Hoare triple {33#true} assume !true; {34#false} is VALID [2020-07-28 17:51:47,697 INFO L280 TraceCheckUtils]: 1: Hoare triple {33#true} havoc main_#res;havoc main_#t~ret8, main_#t~ret9, main_~x~0, main_~res~0;main_~x~0 := ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~FLOAT(currentRoundingMode, 1.0)), ~Pluszero~FLOAT());__ieee754_logf_#in~x := main_~x~0;havoc __ieee754_logf_#res;havoc __ieee754_logf_#t~mem2, __ieee754_logf_#t~union3, __ieee754_logf_~#gf_u~1.base, __ieee754_logf_~#gf_u~1.offset, __ieee754_logf_#t~mem4, __ieee754_logf_#t~union5, __ieee754_logf_~#gf_u~2.base, __ieee754_logf_~#gf_u~2.offset, __ieee754_logf_#t~mem6, __ieee754_logf_#t~union7, __ieee754_logf_~#sf_u~0.base, __ieee754_logf_~#sf_u~0.offset, __ieee754_logf_~x, __ieee754_logf_~hfsq~0, __ieee754_logf_~f~0, __ieee754_logf_~s~0, __ieee754_logf_~z~0, __ieee754_logf_~R~0, __ieee754_logf_~w~0, __ieee754_logf_~t1~0, __ieee754_logf_~t2~0, __ieee754_logf_~dk~0, __ieee754_logf_~k~0, __ieee754_logf_~ix~1, __ieee754_logf_~i~0, __ieee754_logf_~j~0;__ieee754_logf_~x := __ieee754_logf_#in~x;havoc __ieee754_logf_~hfsq~0;havoc __ieee754_logf_~f~0;havoc __ieee754_logf_~s~0;havoc __ieee754_logf_~z~0;havoc __ieee754_logf_~R~0;havoc __ieee754_logf_~w~0;havoc __ieee754_logf_~t1~0;havoc __ieee754_logf_~t2~0;havoc __ieee754_logf_~dk~0;havoc __ieee754_logf_~k~0;havoc __ieee754_logf_~ix~1;havoc __ieee754_logf_~i~0;havoc __ieee754_logf_~j~0; {33#true} is VALID [2020-07-28 17:51:47,698 INFO L280 TraceCheckUtils]: 0: Hoare triple {33#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;~ln2_hi_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.69313812256));~ln2_lo_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 9.0580006145E-6));~two25_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 3.3554432E7));~Lg1_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.66666668653));~Lg2_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.40000000596));~Lg3_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.28571429849));~Lg4_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.22222198546));~Lg5_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.1818357259));~Lg6_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.15313838422));~Lg7_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.1479819864));~zero_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~Pluszero~DOUBLE()); {33#true} is VALID [2020-07-28 17:51:47,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:51:47,699 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [179647580] [2020-07-28 17:51:47,700 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:51:47,700 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-07-28 17:51:47,701 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650224814] [2020-07-28 17:51:47,707 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-07-28 17:51:47,709 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:51:47,713 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 17:51:47,876 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 9 edges. 9 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:51:47,877 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 17:51:47,877 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:51:47,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 17:51:47,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 17:51:47,888 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2020-07-28 17:52:02,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:52:02,868 INFO L93 Difference]: Finished difference Result 58 states and 92 transitions. [2020-07-28 17:52:02,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 17:52:02,869 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-07-28 17:52:02,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:52:02,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:52:02,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 92 transitions. [2020-07-28 17:52:02,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:52:02,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 92 transitions. [2020-07-28 17:52:02,882 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 92 transitions. [2020-07-28 17:52:06,310 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 92 edges. 92 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:52:06,322 INFO L225 Difference]: With dead ends: 58 [2020-07-28 17:52:06,322 INFO L226 Difference]: Without dead ends: 27 [2020-07-28 17:52:06,328 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 17:52:06,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-07-28 17:52:06,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-07-28 17:52:06,367 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:52:06,369 INFO L82 GeneralOperation]: Start isEquivalent. First operand 27 states. Second operand 27 states. [2020-07-28 17:52:06,369 INFO L74 IsIncluded]: Start isIncluded. First operand 27 states. Second operand 27 states. [2020-07-28 17:52:06,369 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 27 states. [2020-07-28 17:52:06,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:52:06,374 INFO L93 Difference]: Finished difference Result 27 states and 37 transitions. [2020-07-28 17:52:06,374 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2020-07-28 17:52:06,375 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:52:06,375 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:52:06,375 INFO L74 IsIncluded]: Start isIncluded. First operand 27 states. Second operand 27 states. [2020-07-28 17:52:06,376 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 27 states. [2020-07-28 17:52:06,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:52:06,379 INFO L93 Difference]: Finished difference Result 27 states and 37 transitions. [2020-07-28 17:52:06,379 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2020-07-28 17:52:06,380 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:52:06,380 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:52:06,381 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:52:06,381 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:52:06,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-07-28 17:52:06,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2020-07-28 17:52:06,386 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 9 [2020-07-28 17:52:06,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:52:06,386 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2020-07-28 17:52:06,387 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 17:52:06,387 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2020-07-28 17:52:06,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-28 17:52:06,388 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:52:06,388 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:52:06,603 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-07-28 17:52:06,604 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:52:06,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:52:06,605 INFO L82 PathProgramCache]: Analyzing trace with hash 1484246989, now seen corresponding path program 1 times [2020-07-28 17:52:06,607 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:52:06,607 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [46788700] [2020-07-28 17:52:06,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-07-28 17:52:07,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:52:07,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-28 17:52:07,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:52:07,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:52:07,264 INFO L280 TraceCheckUtils]: 0: Hoare triple {241#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;~ln2_hi_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.69313812256));~ln2_lo_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 9.0580006145E-6));~two25_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 3.3554432E7));~Lg1_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.66666668653));~Lg2_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.40000000596));~Lg3_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.28571429849));~Lg4_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.22222198546));~Lg5_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.1818357259));~Lg6_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.15313838422));~Lg7_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.1479819864));~zero_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~Pluszero~DOUBLE()); {241#true} is VALID [2020-07-28 17:52:07,268 INFO L280 TraceCheckUtils]: 1: Hoare triple {241#true} havoc main_#res;havoc main_#t~ret8, main_#t~ret9, main_~x~0, main_~res~0;main_~x~0 := ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~FLOAT(currentRoundingMode, 1.0)), ~Pluszero~FLOAT());__ieee754_logf_#in~x := main_~x~0;havoc __ieee754_logf_#res;havoc __ieee754_logf_#t~mem2, __ieee754_logf_#t~union3, __ieee754_logf_~#gf_u~1.base, __ieee754_logf_~#gf_u~1.offset, __ieee754_logf_#t~mem4, __ieee754_logf_#t~union5, __ieee754_logf_~#gf_u~2.base, __ieee754_logf_~#gf_u~2.offset, __ieee754_logf_#t~mem6, __ieee754_logf_#t~union7, __ieee754_logf_~#sf_u~0.base, __ieee754_logf_~#sf_u~0.offset, __ieee754_logf_~x, __ieee754_logf_~hfsq~0, __ieee754_logf_~f~0, __ieee754_logf_~s~0, __ieee754_logf_~z~0, __ieee754_logf_~R~0, __ieee754_logf_~w~0, __ieee754_logf_~t1~0, __ieee754_logf_~t2~0, __ieee754_logf_~dk~0, __ieee754_logf_~k~0, __ieee754_logf_~ix~1, __ieee754_logf_~i~0, __ieee754_logf_~j~0;__ieee754_logf_~x := __ieee754_logf_#in~x;havoc __ieee754_logf_~hfsq~0;havoc __ieee754_logf_~f~0;havoc __ieee754_logf_~s~0;havoc __ieee754_logf_~z~0;havoc __ieee754_logf_~R~0;havoc __ieee754_logf_~w~0;havoc __ieee754_logf_~t1~0;havoc __ieee754_logf_~t2~0;havoc __ieee754_logf_~dk~0;havoc __ieee754_logf_~k~0;havoc __ieee754_logf_~ix~1;havoc __ieee754_logf_~i~0;havoc __ieee754_logf_~j~0; {249#(exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start___ieee754_logf_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))))} is VALID [2020-07-28 17:52:07,274 INFO L280 TraceCheckUtils]: 2: Hoare triple {249#(exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start___ieee754_logf_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))))} call __ieee754_logf_~#gf_u~1.base, __ieee754_logf_~#gf_u~1.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__ieee754_logf_~x, __ieee754_logf_~#gf_u~1.base, __ieee754_logf_~#gf_u~1.offset, 4bv32);call __ieee754_logf_#t~mem2 := read~intINTTYPE4(__ieee754_logf_~#gf_u~1.base, __ieee754_logf_~#gf_u~1.offset, 4bv32);__ieee754_logf_~ix~1 := __ieee754_logf_#t~mem2;call write~intFLOATTYPE4(__ieee754_logf_#t~union3, __ieee754_logf_~#gf_u~1.base, __ieee754_logf_~#gf_u~1.offset, 4bv32);havoc __ieee754_logf_#t~mem2;havoc __ieee754_logf_#t~union3;call ULTIMATE.dealloc(__ieee754_logf_~#gf_u~1.base, __ieee754_logf_~#gf_u~1.offset);havoc __ieee754_logf_~#gf_u~1.base, __ieee754_logf_~#gf_u~1.offset; {253#(exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) (fp ((_ extract 31 31) ULTIMATE.start___ieee754_logf_~ix~1) ((_ extract 30 23) ULTIMATE.start___ieee754_logf_~ix~1) ((_ extract 22 0) ULTIMATE.start___ieee754_logf_~ix~1))))} is VALID [2020-07-28 17:52:07,275 INFO L280 TraceCheckUtils]: 3: Hoare triple {253#(exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) (fp ((_ extract 31 31) ULTIMATE.start___ieee754_logf_~ix~1) ((_ extract 30 23) ULTIMATE.start___ieee754_logf_~ix~1) ((_ extract 22 0) ULTIMATE.start___ieee754_logf_~ix~1))))} goto; {253#(exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) (fp ((_ extract 31 31) ULTIMATE.start___ieee754_logf_~ix~1) ((_ extract 30 23) ULTIMATE.start___ieee754_logf_~ix~1) ((_ extract 22 0) ULTIMATE.start___ieee754_logf_~ix~1))))} is VALID [2020-07-28 17:52:07,276 INFO L280 TraceCheckUtils]: 4: Hoare triple {253#(exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) (fp ((_ extract 31 31) ULTIMATE.start___ieee754_logf_~ix~1) ((_ extract 30 23) ULTIMATE.start___ieee754_logf_~ix~1) ((_ extract 22 0) ULTIMATE.start___ieee754_logf_~ix~1))))} __ieee754_logf_~k~0 := 0bv32; {253#(exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) (fp ((_ extract 31 31) ULTIMATE.start___ieee754_logf_~ix~1) ((_ extract 30 23) ULTIMATE.start___ieee754_logf_~ix~1) ((_ extract 22 0) ULTIMATE.start___ieee754_logf_~ix~1))))} is VALID [2020-07-28 17:52:07,425 INFO L280 TraceCheckUtils]: 5: Hoare triple {253#(exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) (fp ((_ extract 31 31) ULTIMATE.start___ieee754_logf_~ix~1) ((_ extract 30 23) ULTIMATE.start___ieee754_logf_~ix~1) ((_ extract 22 0) ULTIMATE.start___ieee754_logf_~ix~1))))} assume 0bv32 == ~bvand32(2147483647bv32, __ieee754_logf_~ix~1);__ieee754_logf_#res := ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~two25_log~0), ~zero_log~0); {242#false} is VALID [2020-07-28 17:52:07,426 INFO L280 TraceCheckUtils]: 6: Hoare triple {242#false} main_#t~ret8 := __ieee754_logf_#res;main_~res~0 := main_#t~ret8;havoc main_#t~ret8;isnan_float_#in~x := main_~res~0;havoc isnan_float_#res;havoc isnan_float_~x;isnan_float_~x := isnan_float_#in~x;isnan_float_#res := (if !~fp.eq~FLOAT(isnan_float_~x, isnan_float_~x) then 1bv32 else 0bv32); {242#false} is VALID [2020-07-28 17:52:07,426 INFO L280 TraceCheckUtils]: 7: Hoare triple {242#false} main_#t~ret9 := isnan_float_#res; {242#false} is VALID [2020-07-28 17:52:07,427 INFO L280 TraceCheckUtils]: 8: Hoare triple {242#false} assume 0bv32 == main_#t~ret9;havoc main_#t~ret9; {242#false} is VALID [2020-07-28 17:52:07,427 INFO L280 TraceCheckUtils]: 9: Hoare triple {242#false} assume !false; {242#false} is VALID [2020-07-28 17:52:07,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:52:07,429 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:52:07,552 INFO L280 TraceCheckUtils]: 9: Hoare triple {242#false} assume !false; {242#false} is VALID [2020-07-28 17:52:07,552 INFO L280 TraceCheckUtils]: 8: Hoare triple {242#false} assume 0bv32 == main_#t~ret9;havoc main_#t~ret9; {242#false} is VALID [2020-07-28 17:52:07,552 INFO L280 TraceCheckUtils]: 7: Hoare triple {242#false} main_#t~ret9 := isnan_float_#res; {242#false} is VALID [2020-07-28 17:52:07,553 INFO L280 TraceCheckUtils]: 6: Hoare triple {242#false} main_#t~ret8 := __ieee754_logf_#res;main_~res~0 := main_#t~ret8;havoc main_#t~ret8;isnan_float_#in~x := main_~res~0;havoc isnan_float_#res;havoc isnan_float_~x;isnan_float_~x := isnan_float_#in~x;isnan_float_#res := (if !~fp.eq~FLOAT(isnan_float_~x, isnan_float_~x) then 1bv32 else 0bv32); {242#false} is VALID [2020-07-28 17:52:07,553 INFO L280 TraceCheckUtils]: 5: Hoare triple {287#(not (= (_ bv0 32) (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_logf_~ix~1)))} assume 0bv32 == ~bvand32(2147483647bv32, __ieee754_logf_~ix~1);__ieee754_logf_#res := ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~two25_log~0), ~zero_log~0); {242#false} is VALID [2020-07-28 17:52:07,556 INFO L280 TraceCheckUtils]: 4: Hoare triple {287#(not (= (_ bv0 32) (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_logf_~ix~1)))} __ieee754_logf_~k~0 := 0bv32; {287#(not (= (_ bv0 32) (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_logf_~ix~1)))} is VALID [2020-07-28 17:52:07,561 INFO L280 TraceCheckUtils]: 3: Hoare triple {287#(not (= (_ bv0 32) (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_logf_~ix~1)))} goto; {287#(not (= (_ bv0 32) (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_logf_~ix~1)))} is VALID [2020-07-28 17:52:07,567 INFO L280 TraceCheckUtils]: 2: Hoare triple {297#(forall ((v_ULTIMATE.start___ieee754_logf_~ix~1_18 (_ BitVec 32))) (or (not (= (fp ((_ extract 31 31) v_ULTIMATE.start___ieee754_logf_~ix~1_18) ((_ extract 30 23) v_ULTIMATE.start___ieee754_logf_~ix~1_18) ((_ extract 22 0) v_ULTIMATE.start___ieee754_logf_~ix~1_18)) ULTIMATE.start___ieee754_logf_~x)) (not (= (_ bv0 32) (bvand (_ bv2147483647 32) v_ULTIMATE.start___ieee754_logf_~ix~1_18)))))} call __ieee754_logf_~#gf_u~1.base, __ieee754_logf_~#gf_u~1.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__ieee754_logf_~x, __ieee754_logf_~#gf_u~1.base, __ieee754_logf_~#gf_u~1.offset, 4bv32);call __ieee754_logf_#t~mem2 := read~intINTTYPE4(__ieee754_logf_~#gf_u~1.base, __ieee754_logf_~#gf_u~1.offset, 4bv32);__ieee754_logf_~ix~1 := __ieee754_logf_#t~mem2;call write~intFLOATTYPE4(__ieee754_logf_#t~union3, __ieee754_logf_~#gf_u~1.base, __ieee754_logf_~#gf_u~1.offset, 4bv32);havoc __ieee754_logf_#t~mem2;havoc __ieee754_logf_#t~union3;call ULTIMATE.dealloc(__ieee754_logf_~#gf_u~1.base, __ieee754_logf_~#gf_u~1.offset);havoc __ieee754_logf_~#gf_u~1.base, __ieee754_logf_~#gf_u~1.offset; {287#(not (= (_ bv0 32) (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_logf_~ix~1)))} is VALID [2020-07-28 17:52:07,571 INFO L280 TraceCheckUtils]: 1: Hoare triple {241#true} havoc main_#res;havoc main_#t~ret8, main_#t~ret9, main_~x~0, main_~res~0;main_~x~0 := ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~FLOAT(currentRoundingMode, 1.0)), ~Pluszero~FLOAT());__ieee754_logf_#in~x := main_~x~0;havoc __ieee754_logf_#res;havoc __ieee754_logf_#t~mem2, __ieee754_logf_#t~union3, __ieee754_logf_~#gf_u~1.base, __ieee754_logf_~#gf_u~1.offset, __ieee754_logf_#t~mem4, __ieee754_logf_#t~union5, __ieee754_logf_~#gf_u~2.base, __ieee754_logf_~#gf_u~2.offset, __ieee754_logf_#t~mem6, __ieee754_logf_#t~union7, __ieee754_logf_~#sf_u~0.base, __ieee754_logf_~#sf_u~0.offset, __ieee754_logf_~x, __ieee754_logf_~hfsq~0, __ieee754_logf_~f~0, __ieee754_logf_~s~0, __ieee754_logf_~z~0, __ieee754_logf_~R~0, __ieee754_logf_~w~0, __ieee754_logf_~t1~0, __ieee754_logf_~t2~0, __ieee754_logf_~dk~0, __ieee754_logf_~k~0, __ieee754_logf_~ix~1, __ieee754_logf_~i~0, __ieee754_logf_~j~0;__ieee754_logf_~x := __ieee754_logf_#in~x;havoc __ieee754_logf_~hfsq~0;havoc __ieee754_logf_~f~0;havoc __ieee754_logf_~s~0;havoc __ieee754_logf_~z~0;havoc __ieee754_logf_~R~0;havoc __ieee754_logf_~w~0;havoc __ieee754_logf_~t1~0;havoc __ieee754_logf_~t2~0;havoc __ieee754_logf_~dk~0;havoc __ieee754_logf_~k~0;havoc __ieee754_logf_~ix~1;havoc __ieee754_logf_~i~0;havoc __ieee754_logf_~j~0; {297#(forall ((v_ULTIMATE.start___ieee754_logf_~ix~1_18 (_ BitVec 32))) (or (not (= (fp ((_ extract 31 31) v_ULTIMATE.start___ieee754_logf_~ix~1_18) ((_ extract 30 23) v_ULTIMATE.start___ieee754_logf_~ix~1_18) ((_ extract 22 0) v_ULTIMATE.start___ieee754_logf_~ix~1_18)) ULTIMATE.start___ieee754_logf_~x)) (not (= (_ bv0 32) (bvand (_ bv2147483647 32) v_ULTIMATE.start___ieee754_logf_~ix~1_18)))))} is VALID [2020-07-28 17:52:07,571 INFO L280 TraceCheckUtils]: 0: Hoare triple {241#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;~ln2_hi_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.69313812256));~ln2_lo_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 9.0580006145E-6));~two25_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 3.3554432E7));~Lg1_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.66666668653));~Lg2_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.40000000596));~Lg3_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.28571429849));~Lg4_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.22222198546));~Lg5_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.1818357259));~Lg6_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.15313838422));~Lg7_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.1479819864));~zero_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~Pluszero~DOUBLE()); {241#true} is VALID [2020-07-28 17:52:07,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:52:07,572 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [46788700] [2020-07-28 17:52:07,573 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:52:07,573 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-07-28 17:52:07,574 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505987331] [2020-07-28 17:52:07,575 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-07-28 17:52:07,576 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:52:07,576 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-28 17:52:07,902 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 15 edges. 15 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:52:07,903 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-28 17:52:07,903 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:52:07,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-28 17:52:07,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-28 17:52:07,904 INFO L87 Difference]: Start difference. First operand 27 states and 37 transitions. Second operand 6 states. [2020-07-28 17:52:08,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:52:08,901 INFO L93 Difference]: Finished difference Result 32 states and 41 transitions. [2020-07-28 17:52:08,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 17:52:08,902 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-07-28 17:52:08,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:52:08,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 17:52:08,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 41 transitions. [2020-07-28 17:52:08,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 17:52:08,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 41 transitions. [2020-07-28 17:52:08,907 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 41 transitions. [2020-07-28 17:52:10,607 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 41 edges. 41 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:52:10,608 INFO L225 Difference]: With dead ends: 32 [2020-07-28 17:52:10,608 INFO L226 Difference]: Without dead ends: 12 [2020-07-28 17:52:10,609 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-28 17:52:10,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-07-28 17:52:10,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-07-28 17:52:10,616 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:52:10,616 INFO L82 GeneralOperation]: Start isEquivalent. First operand 12 states. Second operand 12 states. [2020-07-28 17:52:10,616 INFO L74 IsIncluded]: Start isIncluded. First operand 12 states. Second operand 12 states. [2020-07-28 17:52:10,617 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 12 states. [2020-07-28 17:52:10,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:52:10,618 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2020-07-28 17:52:10,618 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2020-07-28 17:52:10,619 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:52:10,619 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:52:10,619 INFO L74 IsIncluded]: Start isIncluded. First operand 12 states. Second operand 12 states. [2020-07-28 17:52:10,619 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 12 states. [2020-07-28 17:52:10,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:52:10,621 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2020-07-28 17:52:10,621 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2020-07-28 17:52:10,622 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:52:10,622 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:52:10,622 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:52:10,622 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:52:10,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-07-28 17:52:10,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2020-07-28 17:52:10,624 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 10 [2020-07-28 17:52:10,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:52:10,624 INFO L479 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2020-07-28 17:52:10,624 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-28 17:52:10,624 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2020-07-28 17:52:10,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-28 17:52:10,625 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:52:10,625 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:52:10,837 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-07-28 17:52:10,838 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:52:10,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:52:10,839 INFO L82 PathProgramCache]: Analyzing trace with hash -1245975282, now seen corresponding path program 1 times [2020-07-28 17:52:10,840 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:52:10,840 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [983637743] [2020-07-28 17:52:10,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-07-28 17:52:11,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:52:11,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 12 conjunts are in the unsatisfiable core [2020-07-28 17:52:11,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:52:11,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:52:11,508 INFO L280 TraceCheckUtils]: 0: Hoare triple {383#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;~ln2_hi_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.69313812256));~ln2_lo_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 9.0580006145E-6));~two25_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 3.3554432E7));~Lg1_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.66666668653));~Lg2_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.40000000596));~Lg3_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.28571429849));~Lg4_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.22222198546));~Lg5_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.1818357259));~Lg6_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.15313838422));~Lg7_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.1479819864));~zero_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~Pluszero~DOUBLE()); {388#(and (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0) (= currentRoundingMode roundNearestTiesToEven))} is VALID [2020-07-28 17:52:11,509 INFO L280 TraceCheckUtils]: 1: Hoare triple {388#(and (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0) (= currentRoundingMode roundNearestTiesToEven))} havoc main_#res;havoc main_#t~ret8, main_#t~ret9, main_~x~0, main_~res~0;main_~x~0 := ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~FLOAT(currentRoundingMode, 1.0)), ~Pluszero~FLOAT());__ieee754_logf_#in~x := main_~x~0;havoc __ieee754_logf_#res;havoc __ieee754_logf_#t~mem2, __ieee754_logf_#t~union3, __ieee754_logf_~#gf_u~1.base, __ieee754_logf_~#gf_u~1.offset, __ieee754_logf_#t~mem4, __ieee754_logf_#t~union5, __ieee754_logf_~#gf_u~2.base, __ieee754_logf_~#gf_u~2.offset, __ieee754_logf_#t~mem6, __ieee754_logf_#t~union7, __ieee754_logf_~#sf_u~0.base, __ieee754_logf_~#sf_u~0.offset, __ieee754_logf_~x, __ieee754_logf_~hfsq~0, __ieee754_logf_~f~0, __ieee754_logf_~s~0, __ieee754_logf_~z~0, __ieee754_logf_~R~0, __ieee754_logf_~w~0, __ieee754_logf_~t1~0, __ieee754_logf_~t2~0, __ieee754_logf_~dk~0, __ieee754_logf_~k~0, __ieee754_logf_~ix~1, __ieee754_logf_~i~0, __ieee754_logf_~j~0;__ieee754_logf_~x := __ieee754_logf_#in~x;havoc __ieee754_logf_~hfsq~0;havoc __ieee754_logf_~f~0;havoc __ieee754_logf_~s~0;havoc __ieee754_logf_~z~0;havoc __ieee754_logf_~R~0;havoc __ieee754_logf_~w~0;havoc __ieee754_logf_~t1~0;havoc __ieee754_logf_~t2~0;havoc __ieee754_logf_~dk~0;havoc __ieee754_logf_~k~0;havoc __ieee754_logf_~ix~1;havoc __ieee754_logf_~i~0;havoc __ieee754_logf_~j~0; {392#(and (= ULTIMATE.start___ieee754_logf_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0) (= currentRoundingMode roundNearestTiesToEven))} is VALID [2020-07-28 17:52:11,511 INFO L280 TraceCheckUtils]: 2: Hoare triple {392#(and (= ULTIMATE.start___ieee754_logf_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0) (= currentRoundingMode roundNearestTiesToEven))} call __ieee754_logf_~#gf_u~1.base, __ieee754_logf_~#gf_u~1.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__ieee754_logf_~x, __ieee754_logf_~#gf_u~1.base, __ieee754_logf_~#gf_u~1.offset, 4bv32);call __ieee754_logf_#t~mem2 := read~intINTTYPE4(__ieee754_logf_~#gf_u~1.base, __ieee754_logf_~#gf_u~1.offset, 4bv32);__ieee754_logf_~ix~1 := __ieee754_logf_#t~mem2;call write~intFLOATTYPE4(__ieee754_logf_#t~union3, __ieee754_logf_~#gf_u~1.base, __ieee754_logf_~#gf_u~1.offset, 4bv32);havoc __ieee754_logf_#t~mem2;havoc __ieee754_logf_#t~union3;call ULTIMATE.dealloc(__ieee754_logf_~#gf_u~1.base, __ieee754_logf_~#gf_u~1.offset);havoc __ieee754_logf_~#gf_u~1.base, __ieee754_logf_~#gf_u~1.offset; {392#(and (= ULTIMATE.start___ieee754_logf_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0) (= currentRoundingMode roundNearestTiesToEven))} is VALID [2020-07-28 17:52:11,513 INFO L280 TraceCheckUtils]: 3: Hoare triple {392#(and (= ULTIMATE.start___ieee754_logf_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0) (= currentRoundingMode roundNearestTiesToEven))} goto; {392#(and (= ULTIMATE.start___ieee754_logf_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0) (= currentRoundingMode roundNearestTiesToEven))} is VALID [2020-07-28 17:52:11,515 INFO L280 TraceCheckUtils]: 4: Hoare triple {392#(and (= ULTIMATE.start___ieee754_logf_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0) (= currentRoundingMode roundNearestTiesToEven))} __ieee754_logf_~k~0 := 0bv32; {392#(and (= ULTIMATE.start___ieee754_logf_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0) (= currentRoundingMode roundNearestTiesToEven))} is VALID [2020-07-28 17:52:11,516 INFO L280 TraceCheckUtils]: 5: Hoare triple {392#(and (= ULTIMATE.start___ieee754_logf_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0) (= currentRoundingMode roundNearestTiesToEven))} assume !(0bv32 == ~bvand32(2147483647bv32, __ieee754_logf_~ix~1)); {392#(and (= ULTIMATE.start___ieee754_logf_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0) (= currentRoundingMode roundNearestTiesToEven))} is VALID [2020-07-28 17:52:11,517 INFO L280 TraceCheckUtils]: 6: Hoare triple {392#(and (= ULTIMATE.start___ieee754_logf_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0) (= currentRoundingMode roundNearestTiesToEven))} assume ~bvslt32(__ieee754_logf_~ix~1, 0bv32);__ieee754_logf_#res := ~fp.div~FLOAT(currentRoundingMode, ~fp.sub~FLOAT(currentRoundingMode, __ieee754_logf_~x, __ieee754_logf_~x), ~zero_log~0); {408#(= (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)) (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24))) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))) |ULTIMATE.start___ieee754_logf_#res|)} is VALID [2020-07-28 17:52:11,519 INFO L280 TraceCheckUtils]: 7: Hoare triple {408#(= (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)) (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24))) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))) |ULTIMATE.start___ieee754_logf_#res|)} main_#t~ret8 := __ieee754_logf_#res;main_~res~0 := main_#t~ret8;havoc main_#t~ret8;isnan_float_#in~x := main_~res~0;havoc isnan_float_#res;havoc isnan_float_~x;isnan_float_~x := isnan_float_#in~x;isnan_float_#res := (if !~fp.eq~FLOAT(isnan_float_~x, isnan_float_~x) then 1bv32 else 0bv32); {412#(= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|)} is VALID [2020-07-28 17:52:11,520 INFO L280 TraceCheckUtils]: 8: Hoare triple {412#(= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|)} main_#t~ret9 := isnan_float_#res; {416#(= (bvadd |ULTIMATE.start_main_#t~ret9| (_ bv4294967295 32)) (_ bv0 32))} is VALID [2020-07-28 17:52:11,521 INFO L280 TraceCheckUtils]: 9: Hoare triple {416#(= (bvadd |ULTIMATE.start_main_#t~ret9| (_ bv4294967295 32)) (_ bv0 32))} assume 0bv32 == main_#t~ret9;havoc main_#t~ret9; {384#false} is VALID [2020-07-28 17:52:11,522 INFO L280 TraceCheckUtils]: 10: Hoare triple {384#false} assume !false; {384#false} is VALID [2020-07-28 17:52:11,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:52:11,523 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:52:16,539 WARN L193 SmtUtils]: Spent 650.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2020-07-28 17:52:18,743 INFO L280 TraceCheckUtils]: 10: Hoare triple {384#false} assume !false; {384#false} is VALID [2020-07-28 17:52:18,744 INFO L280 TraceCheckUtils]: 9: Hoare triple {426#(not (= |ULTIMATE.start_main_#t~ret9| (_ bv0 32)))} assume 0bv32 == main_#t~ret9;havoc main_#t~ret9; {384#false} is VALID [2020-07-28 17:52:18,750 INFO L280 TraceCheckUtils]: 8: Hoare triple {430#(not (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|))} main_#t~ret9 := isnan_float_#res; {426#(not (= |ULTIMATE.start_main_#t~ret9| (_ bv0 32)))} is VALID [2020-07-28 17:52:18,755 INFO L280 TraceCheckUtils]: 7: Hoare triple {408#(= (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)) (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24))) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))) |ULTIMATE.start___ieee754_logf_#res|)} main_#t~ret8 := __ieee754_logf_#res;main_~res~0 := main_#t~ret8;havoc main_#t~ret8;isnan_float_#in~x := main_~res~0;havoc isnan_float_#res;havoc isnan_float_~x;isnan_float_~x := isnan_float_#in~x;isnan_float_#res := (if !~fp.eq~FLOAT(isnan_float_~x, isnan_float_~x) then 1bv32 else 0bv32); {430#(not (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|))} is VALID [2020-07-28 17:52:18,756 INFO L280 TraceCheckUtils]: 6: Hoare triple {437#(= (fp.div currentRoundingMode (fp.sub currentRoundingMode ULTIMATE.start___ieee754_logf_~x ULTIMATE.start___ieee754_logf_~x) ~zero_log~0) (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)) (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24))) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))))} assume ~bvslt32(__ieee754_logf_~ix~1, 0bv32);__ieee754_logf_#res := ~fp.div~FLOAT(currentRoundingMode, ~fp.sub~FLOAT(currentRoundingMode, __ieee754_logf_~x, __ieee754_logf_~x), ~zero_log~0); {408#(= (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)) (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24))) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))) |ULTIMATE.start___ieee754_logf_#res|)} is VALID [2020-07-28 17:52:18,756 INFO L280 TraceCheckUtils]: 5: Hoare triple {437#(= (fp.div currentRoundingMode (fp.sub currentRoundingMode ULTIMATE.start___ieee754_logf_~x ULTIMATE.start___ieee754_logf_~x) ~zero_log~0) (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)) (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24))) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))))} assume !(0bv32 == ~bvand32(2147483647bv32, __ieee754_logf_~ix~1)); {437#(= (fp.div currentRoundingMode (fp.sub currentRoundingMode ULTIMATE.start___ieee754_logf_~x ULTIMATE.start___ieee754_logf_~x) ~zero_log~0) (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)) (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24))) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))))} is VALID [2020-07-28 17:52:18,759 INFO L280 TraceCheckUtils]: 4: Hoare triple {437#(= (fp.div currentRoundingMode (fp.sub currentRoundingMode ULTIMATE.start___ieee754_logf_~x ULTIMATE.start___ieee754_logf_~x) ~zero_log~0) (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)) (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24))) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))))} __ieee754_logf_~k~0 := 0bv32; {437#(= (fp.div currentRoundingMode (fp.sub currentRoundingMode ULTIMATE.start___ieee754_logf_~x ULTIMATE.start___ieee754_logf_~x) ~zero_log~0) (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)) (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24))) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))))} is VALID [2020-07-28 17:52:18,760 INFO L280 TraceCheckUtils]: 3: Hoare triple {437#(= (fp.div currentRoundingMode (fp.sub currentRoundingMode ULTIMATE.start___ieee754_logf_~x ULTIMATE.start___ieee754_logf_~x) ~zero_log~0) (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)) (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24))) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))))} goto; {437#(= (fp.div currentRoundingMode (fp.sub currentRoundingMode ULTIMATE.start___ieee754_logf_~x ULTIMATE.start___ieee754_logf_~x) ~zero_log~0) (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)) (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24))) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))))} is VALID [2020-07-28 17:52:18,761 INFO L280 TraceCheckUtils]: 2: Hoare triple {437#(= (fp.div currentRoundingMode (fp.sub currentRoundingMode ULTIMATE.start___ieee754_logf_~x ULTIMATE.start___ieee754_logf_~x) ~zero_log~0) (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)) (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24))) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))))} call __ieee754_logf_~#gf_u~1.base, __ieee754_logf_~#gf_u~1.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__ieee754_logf_~x, __ieee754_logf_~#gf_u~1.base, __ieee754_logf_~#gf_u~1.offset, 4bv32);call __ieee754_logf_#t~mem2 := read~intINTTYPE4(__ieee754_logf_~#gf_u~1.base, __ieee754_logf_~#gf_u~1.offset, 4bv32);__ieee754_logf_~ix~1 := __ieee754_logf_#t~mem2;call write~intFLOATTYPE4(__ieee754_logf_#t~union3, __ieee754_logf_~#gf_u~1.base, __ieee754_logf_~#gf_u~1.offset, 4bv32);havoc __ieee754_logf_#t~mem2;havoc __ieee754_logf_#t~union3;call ULTIMATE.dealloc(__ieee754_logf_~#gf_u~1.base, __ieee754_logf_~#gf_u~1.offset);havoc __ieee754_logf_~#gf_u~1.base, __ieee754_logf_~#gf_u~1.offset; {437#(= (fp.div currentRoundingMode (fp.sub currentRoundingMode ULTIMATE.start___ieee754_logf_~x ULTIMATE.start___ieee754_logf_~x) ~zero_log~0) (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)) (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24))) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))))} is VALID [2020-07-28 17:52:18,933 INFO L280 TraceCheckUtils]: 1: Hoare triple {383#true} havoc main_#res;havoc main_#t~ret8, main_#t~ret9, main_~x~0, main_~res~0;main_~x~0 := ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~FLOAT(currentRoundingMode, 1.0)), ~Pluszero~FLOAT());__ieee754_logf_#in~x := main_~x~0;havoc __ieee754_logf_#res;havoc __ieee754_logf_#t~mem2, __ieee754_logf_#t~union3, __ieee754_logf_~#gf_u~1.base, __ieee754_logf_~#gf_u~1.offset, __ieee754_logf_#t~mem4, __ieee754_logf_#t~union5, __ieee754_logf_~#gf_u~2.base, __ieee754_logf_~#gf_u~2.offset, __ieee754_logf_#t~mem6, __ieee754_logf_#t~union7, __ieee754_logf_~#sf_u~0.base, __ieee754_logf_~#sf_u~0.offset, __ieee754_logf_~x, __ieee754_logf_~hfsq~0, __ieee754_logf_~f~0, __ieee754_logf_~s~0, __ieee754_logf_~z~0, __ieee754_logf_~R~0, __ieee754_logf_~w~0, __ieee754_logf_~t1~0, __ieee754_logf_~t2~0, __ieee754_logf_~dk~0, __ieee754_logf_~k~0, __ieee754_logf_~ix~1, __ieee754_logf_~i~0, __ieee754_logf_~j~0;__ieee754_logf_~x := __ieee754_logf_#in~x;havoc __ieee754_logf_~hfsq~0;havoc __ieee754_logf_~f~0;havoc __ieee754_logf_~s~0;havoc __ieee754_logf_~z~0;havoc __ieee754_logf_~R~0;havoc __ieee754_logf_~w~0;havoc __ieee754_logf_~t1~0;havoc __ieee754_logf_~t2~0;havoc __ieee754_logf_~dk~0;havoc __ieee754_logf_~k~0;havoc __ieee754_logf_~ix~1;havoc __ieee754_logf_~i~0;havoc __ieee754_logf_~j~0; {437#(= (fp.div currentRoundingMode (fp.sub currentRoundingMode ULTIMATE.start___ieee754_logf_~x ULTIMATE.start___ieee754_logf_~x) ~zero_log~0) (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)) (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24))) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))))} is VALID [2020-07-28 17:52:18,934 INFO L280 TraceCheckUtils]: 0: Hoare triple {383#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;~ln2_hi_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.69313812256));~ln2_lo_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 9.0580006145E-6));~two25_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 3.3554432E7));~Lg1_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.66666668653));~Lg2_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.40000000596));~Lg3_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.28571429849));~Lg4_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.22222198546));~Lg5_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.1818357259));~Lg6_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.15313838422));~Lg7_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.1479819864));~zero_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~Pluszero~DOUBLE()); {383#true} is VALID [2020-07-28 17:52:18,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:52:18,935 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [983637743] [2020-07-28 17:52:18,936 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:52:18,936 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-07-28 17:52:18,936 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252801425] [2020-07-28 17:52:18,937 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 11 [2020-07-28 17:52:18,937 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:52:18,937 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states. [2020-07-28 17:52:20,074 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 21 edges. 21 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:52:20,074 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-28 17:52:20,074 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:52:20,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-28 17:52:20,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-07-28 17:52:20,075 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand 10 states. [2020-07-28 17:52:21,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:52:21,955 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2020-07-28 17:52:21,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-28 17:52:21,956 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 11 [2020-07-28 17:52:21,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:52:21,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-07-28 17:52:21,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 11 transitions. [2020-07-28 17:52:21,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-07-28 17:52:21,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 11 transitions. [2020-07-28 17:52:21,958 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 11 transitions. [2020-07-28 17:52:22,144 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:52:22,144 INFO L225 Difference]: With dead ends: 12 [2020-07-28 17:52:22,145 INFO L226 Difference]: Without dead ends: 0 [2020-07-28 17:52:22,145 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-07-28 17:52:22,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-28 17:52:22,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-28 17:52:22,146 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:52:22,146 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-28 17:52:22,146 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 17:52:22,146 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 17:52:22,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:52:22,147 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 17:52:22,147 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 17:52:22,147 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:52:22,147 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:52:22,147 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 17:52:22,148 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 17:52:22,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:52:22,148 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 17:52:22,148 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 17:52:22,148 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:52:22,148 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:52:22,148 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:52:22,149 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:52:22,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-28 17:52:22,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-28 17:52:22,149 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2020-07-28 17:52:22,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:52:22,150 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-28 17:52:22,150 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-28 17:52:22,150 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 17:52:22,150 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:52:22,354 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-07-28 17:52:22,358 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-28 17:52:22,660 INFO L268 CegarLoopResult]: For program point L97(lines 97 101) no Hoare annotation was computed. [2020-07-28 17:52:22,660 INFO L268 CegarLoopResult]: For program point L52-1(lines 52 56) no Hoare annotation was computed. [2020-07-28 17:52:22,661 INFO L264 CegarLoopResult]: At program point L52-2(lines 52 56) the Hoare annotation is: false [2020-07-28 17:52:22,661 INFO L264 CegarLoopResult]: At program point L106(lines 32 108) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) (fp ((_ extract 31 31) ULTIMATE.start___ieee754_logf_~ix~1) ((_ extract 30 23) ULTIMATE.start___ieee754_logf_~ix~1) ((_ extract 22 0) ULTIMATE.start___ieee754_logf_~ix~1)))) (= (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))) |ULTIMATE.start___ieee754_logf_#res|) (= ULTIMATE.start___ieee754_logf_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0) (= currentRoundingMode roundNearestTiesToEven)) [2020-07-28 17:52:22,661 INFO L268 CegarLoopResult]: For program point L69(lines 69 76) no Hoare annotation was computed. [2020-07-28 17:52:22,661 INFO L268 CegarLoopResult]: For program point L36-1(lines 36 40) no Hoare annotation was computed. [2020-07-28 17:52:22,661 INFO L264 CegarLoopResult]: At program point L36-2(lines 36 40) the Hoare annotation is: (and (= ULTIMATE.start___ieee754_logf_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0) (= currentRoundingMode roundNearestTiesToEven)) [2020-07-28 17:52:22,661 INFO L268 CegarLoopResult]: For program point L36-3(lines 36 40) no Hoare annotation was computed. [2020-07-28 17:52:22,662 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-07-28 17:52:22,662 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-28 17:52:22,662 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-28 17:52:22,662 INFO L268 CegarLoopResult]: For program point L61-1(lines 61 65) no Hoare annotation was computed. [2020-07-28 17:52:22,662 INFO L264 CegarLoopResult]: At program point L61-2(lines 61 65) the Hoare annotation is: false [2020-07-28 17:52:22,662 INFO L268 CegarLoopResult]: For program point L61-3(lines 61 65) no Hoare annotation was computed. [2020-07-28 17:52:22,662 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 125) no Hoare annotation was computed. [2020-07-28 17:52:22,662 INFO L268 CegarLoopResult]: For program point L49(lines 49 57) no Hoare annotation was computed. [2020-07-28 17:52:22,663 INFO L268 CegarLoopResult]: For program point L49-1(lines 49 57) no Hoare annotation was computed. [2020-07-28 17:52:22,663 INFO L264 CegarLoopResult]: At program point L111(line 111) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) (fp ((_ extract 31 31) ULTIMATE.start___ieee754_logf_~ix~1) ((_ extract 30 23) ULTIMATE.start___ieee754_logf_~ix~1) ((_ extract 22 0) ULTIMATE.start___ieee754_logf_~ix~1)))) (= (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))) |ULTIMATE.start___ieee754_logf_#res|) (= ULTIMATE.start___ieee754_logf_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0) (= currentRoundingMode roundNearestTiesToEven)) [2020-07-28 17:52:22,663 INFO L268 CegarLoopResult]: For program point L78(lines 78 83) no Hoare annotation was computed. [2020-07-28 17:52:22,664 INFO L268 CegarLoopResult]: For program point L45(lines 45 46) no Hoare annotation was computed. [2020-07-28 17:52:22,664 INFO L268 CegarLoopResult]: For program point L103(lines 103 106) no Hoare annotation was computed. [2020-07-28 17:52:22,664 INFO L268 CegarLoopResult]: For program point L70(lines 70 75) no Hoare annotation was computed. [2020-07-28 17:52:22,664 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-28 17:52:22,664 INFO L268 CegarLoopResult]: For program point L95(lines 95 107) no Hoare annotation was computed. [2020-07-28 17:52:22,664 INFO L268 CegarLoopResult]: For program point L124(lines 124 127) no Hoare annotation was computed. [2020-07-28 17:52:22,664 INFO L271 CegarLoopResult]: At program point L129(lines 113 130) the Hoare annotation is: true [2020-07-28 17:52:22,664 INFO L268 CegarLoopResult]: For program point L125(line 125) no Hoare annotation was computed. [2020-07-28 17:52:22,665 INFO L268 CegarLoopResult]: For program point L47(lines 47 48) no Hoare annotation was computed. [2020-07-28 17:52:22,665 INFO L268 CegarLoopResult]: For program point L43(lines 43 44) no Hoare annotation was computed. [2020-07-28 17:52:22,665 INFO L268 CegarLoopResult]: For program point L68(lines 68 84) no Hoare annotation was computed. [2020-07-28 17:52:22,669 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 17:52:22,669 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-28 17:52:22,669 WARN L170 areAnnotationChecker]: L36-1 has no Hoare annotation [2020-07-28 17:52:22,669 WARN L170 areAnnotationChecker]: L36-3 has no Hoare annotation [2020-07-28 17:52:22,669 WARN L170 areAnnotationChecker]: L36-1 has no Hoare annotation [2020-07-28 17:52:22,669 WARN L170 areAnnotationChecker]: L36-1 has no Hoare annotation [2020-07-28 17:52:22,669 WARN L170 areAnnotationChecker]: L36-3 has no Hoare annotation [2020-07-28 17:52:22,669 WARN L170 areAnnotationChecker]: L43 has no Hoare annotation [2020-07-28 17:52:22,670 WARN L170 areAnnotationChecker]: L43 has no Hoare annotation [2020-07-28 17:52:22,671 WARN L170 areAnnotationChecker]: L45 has no Hoare annotation [2020-07-28 17:52:22,671 WARN L170 areAnnotationChecker]: L45 has no Hoare annotation [2020-07-28 17:52:22,671 WARN L170 areAnnotationChecker]: L124 has no Hoare annotation [2020-07-28 17:52:22,671 WARN L170 areAnnotationChecker]: L47 has no Hoare annotation [2020-07-28 17:52:22,672 WARN L170 areAnnotationChecker]: L47 has no Hoare annotation [2020-07-28 17:52:22,672 WARN L170 areAnnotationChecker]: L124 has no Hoare annotation [2020-07-28 17:52:22,672 WARN L170 areAnnotationChecker]: L124 has no Hoare annotation [2020-07-28 17:52:22,672 WARN L170 areAnnotationChecker]: L49 has no Hoare annotation [2020-07-28 17:52:22,672 WARN L170 areAnnotationChecker]: L49 has no Hoare annotation [2020-07-28 17:52:22,672 WARN L170 areAnnotationChecker]: L125 has no Hoare annotation [2020-07-28 17:52:22,672 WARN L170 areAnnotationChecker]: L125 has no Hoare annotation [2020-07-28 17:52:22,672 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 17:52:22,673 WARN L170 areAnnotationChecker]: L52-1 has no Hoare annotation [2020-07-28 17:52:22,673 WARN L170 areAnnotationChecker]: L49-1 has no Hoare annotation [2020-07-28 17:52:22,673 WARN L170 areAnnotationChecker]: L49-1 has no Hoare annotation [2020-07-28 17:52:22,673 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 17:52:22,673 WARN L170 areAnnotationChecker]: L52-1 has no Hoare annotation [2020-07-28 17:52:22,673 WARN L170 areAnnotationChecker]: L52-1 has no Hoare annotation [2020-07-28 17:52:22,673 WARN L170 areAnnotationChecker]: L61-1 has no Hoare annotation [2020-07-28 17:52:22,673 WARN L170 areAnnotationChecker]: L61-3 has no Hoare annotation [2020-07-28 17:52:22,674 WARN L170 areAnnotationChecker]: L61-1 has no Hoare annotation [2020-07-28 17:52:22,674 WARN L170 areAnnotationChecker]: L61-1 has no Hoare annotation [2020-07-28 17:52:22,674 WARN L170 areAnnotationChecker]: L61-3 has no Hoare annotation [2020-07-28 17:52:22,674 WARN L170 areAnnotationChecker]: L68 has no Hoare annotation [2020-07-28 17:52:22,674 WARN L170 areAnnotationChecker]: L68 has no Hoare annotation [2020-07-28 17:52:22,674 WARN L170 areAnnotationChecker]: L69 has no Hoare annotation [2020-07-28 17:52:22,674 WARN L170 areAnnotationChecker]: L69 has no Hoare annotation [2020-07-28 17:52:22,675 WARN L170 areAnnotationChecker]: L95 has no Hoare annotation [2020-07-28 17:52:22,675 WARN L170 areAnnotationChecker]: L95 has no Hoare annotation [2020-07-28 17:52:22,675 WARN L170 areAnnotationChecker]: L70 has no Hoare annotation [2020-07-28 17:52:22,675 WARN L170 areAnnotationChecker]: L70 has no Hoare annotation [2020-07-28 17:52:22,675 WARN L170 areAnnotationChecker]: L78 has no Hoare annotation [2020-07-28 17:52:22,675 WARN L170 areAnnotationChecker]: L78 has no Hoare annotation [2020-07-28 17:52:22,675 WARN L170 areAnnotationChecker]: L97 has no Hoare annotation [2020-07-28 17:52:22,675 WARN L170 areAnnotationChecker]: L97 has no Hoare annotation [2020-07-28 17:52:22,675 WARN L170 areAnnotationChecker]: L103 has no Hoare annotation [2020-07-28 17:52:22,676 WARN L170 areAnnotationChecker]: L103 has no Hoare annotation [2020-07-28 17:52:22,676 INFO L163 areAnnotationChecker]: CFG has 1 edges. 1 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-28 17:52:22,682 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:52:22,683 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:52:22,683 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,684 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,684 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,685 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,685 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,685 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,686 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,686 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,689 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:52:22,690 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:52:22,690 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:52:22,690 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:52:22,693 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:52:22,694 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:52:22,694 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,695 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,695 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,695 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,696 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,696 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,696 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,697 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,698 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:52:22,698 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:52:22,699 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:52:22,699 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:52:22,700 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:52:22,701 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:52:22,701 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,701 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,702 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,702 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,702 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,703 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,703 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,704 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,704 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:52:22,705 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:52:22,705 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:52:22,705 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:52:22,706 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:52:22,706 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:52:22,706 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,707 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,707 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,707 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,708 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,708 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,708 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,709 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,709 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:52:22,710 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:52:22,710 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:52:22,710 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:52:22,712 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,712 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:52:22,712 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:52:22,713 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:52:22,713 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:52:22,713 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,714 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:52:22,714 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:52:22,714 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:52:22,715 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:52:22,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 05:52:22 BoogieIcfgContainer [2020-07-28 17:52:22,717 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 17:52:22,718 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 17:52:22,718 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 17:52:22,718 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 17:52:22,719 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:51:46" (3/4) ... [2020-07-28 17:52:22,723 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-07-28 17:52:22,736 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-07-28 17:52:22,737 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-07-28 17:52:22,737 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-07-28 17:52:22,766 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0])) && ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2020-07-28 17:52:22,767 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0])) && ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE())) && 1bv32 == \result) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2020-07-28 17:52:22,816 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 17:52:22,817 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 17:52:22,819 INFO L168 Benchmark]: Toolchain (without parser) took 49734.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 961.6 MB in the beginning and 826.8 MB in the end (delta: 134.8 MB). Peak memory consumption was 268.5 MB. Max. memory is 11.5 GB. [2020-07-28 17:52:22,820 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:52:22,820 INFO L168 Benchmark]: CACSL2BoogieTranslator took 550.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 961.6 MB in the beginning and 1.1 GB in the end (delta: -161.6 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. [2020-07-28 17:52:22,821 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2020-07-28 17:52:22,822 INFO L168 Benchmark]: Boogie Preprocessor took 50.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2020-07-28 17:52:22,822 INFO L168 Benchmark]: RCFGBuilder took 13167.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 39.2 MB). Peak memory consumption was 39.2 MB. Max. memory is 11.5 GB. [2020-07-28 17:52:22,823 INFO L168 Benchmark]: TraceAbstraction took 35786.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 833.6 MB in the end (delta: 242.0 MB). Peak memory consumption was 242.0 MB. Max. memory is 11.5 GB. [2020-07-28 17:52:22,823 INFO L168 Benchmark]: Witness Printer took 98.99 ms. Allocated memory is still 1.2 GB. Free memory was 833.6 MB in the beginning and 826.8 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2020-07-28 17:52:22,827 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 550.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 961.6 MB in the beginning and 1.1 GB in the end (delta: -161.6 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 72.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 50.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 13167.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 39.2 MB). Peak memory consumption was 39.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 35786.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 833.6 MB in the end (delta: 242.0 MB). Peak memory consumption was 242.0 MB. Max. memory is 11.5 GB. * Witness Printer took 98.99 ms. Allocated memory is still 1.2 GB. Free memory was 833.6 MB in the beginning and 826.8 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 125]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 111]: Loop Invariant [2020-07-28 17:52:22,845 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:52:22,846 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:52:22,846 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,846 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,847 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,847 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,847 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,848 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,848 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,849 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,849 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:52:22,850 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:52:22,850 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:52:22,850 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:52:22,851 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:52:22,851 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:52:22,852 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,852 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,852 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,853 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,853 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,853 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,853 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,854 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,855 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:52:22,855 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:52:22,855 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:52:22,855 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((((\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0])) && ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE())) && 1bv32 == \result) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 32]: Loop Invariant [2020-07-28 17:52:22,856 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:52:22,857 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:52:22,857 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,857 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,857 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,858 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,858 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,858 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,859 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,859 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,860 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:52:22,860 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:52:22,860 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:52:22,861 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:52:22,861 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:52:22,861 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:52:22,862 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,862 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,862 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,863 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,863 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,863 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,863 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,864 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,865 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:52:22,865 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:52:22,865 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:52:22,865 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0])) && ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 61]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 113]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 36]: Loop Invariant [2020-07-28 17:52:22,867 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,867 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:52:22,867 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:52:22,868 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:52:22,868 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:52:22,869 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:52:22,869 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:52:22,869 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:52:22,869 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:52:22,870 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 35.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 23.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 52 SDtfs, 29 SDslu, 24 SDs, 0 SdLazy, 27 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 40 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 5.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 10 NumberOfFragments, 138 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 30 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 8.2s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 54 ConstructedInterpolants, 5 QuantifiedInterpolants, 4154 SizeOfPredicates, 17 NumberOfNonLiveVariables, 117 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...